Magnetic properties of Nd(Fe,Ti) ₁₂ and Nd(Fe,Ti) ₁₂N_x films of perpendicular texture

Authors

D. Wang, University of Nebraska - Lincoln
David J. Sellmyer, University of Nebraska-LincolnFollow
I. Panagiotopoulos, Demokritos, National Center for Scientific Research, Institute of Materials Science, 153 10, Aghia Paraskevi Attikis, Athens, Greece
D. Niarchos, Demokritos, National Center for Scientific Research, Institute of Materials Science, 153 10, Aghia Paraskevi Attikis, Athens, Greece

Document Type

Article

Date of this Version

May 1994

Comments

Published by American Institute of Physics. J. Applied Physics 75, 6232 (1994). ©1994 American Institute of Physics. Permission to use. http://jap.aip.org/jap/.

Abstract

Nd(Fe,Ti)₁₂ and Nd(Fe,Ti)₁₂N_x films textured with c axis perpendicular to the film plane were synthesized by sputtering. For the Nd(Fe,Ti)₁₂ films a spin reorientation took place at about 170 K. For the Nd(Fe,Ti)₁₂N_x films, the anisotropy field is about 85 kOe at room temperature and 130 kOe at 5 K, corresponding to a coercivity of 2.7 and 12 kOe, respectively. Initial magnetization curves show a behavior characteristic of nucleation type of magnetization reversal mechanism. Attempts were made to fit the experimental data with Kronmüller's magnetization reversal model. The results suggest that nucleation with extended sites is responsible for the reversal. Journal of Applied Physics is copyrighted by The American Institute of Physics.